| details |
Aalenian |
Early Bathonian |
North Sea |
Abbink,O.A. et al. Palynomorph ecostratigraphy of the Middle Jurassic Ness Formation (Brent Group, East Shetland Basin). (In: Palynological Investigation in the Jurassic of the North Sea Region. O.A. Abbink) |
1998 |
| details |
Llanvirnian |
Ashgillian |
Libya |
Abuhmida,F. et al. Palynostratigraphy and paleoenvironmental study of Middle and Upper Ordovician sequences in NW Sirt Basin, Libya. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| details |
Early Tremadocian |
|
Argentina(Salta) |
AceŠ±olaza,G.F. et al. Paleontology and biostratigraphy of the Lower Ordovician strata cropping out at the Abra de Zenta (Cordillera Oriental, Jujuy and Salta provinces), NW Argentina. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| details |
Early Tremadocian |
|
Argentina(Jujuy) |
AceŠ±olaza,G.F. et al. Paleontology and biostratigraphy of the Lower Ordovician strata cropping out at the Abra de Zenta (Cordillera Oriental, Jujuy and Salta provinces), NW Argentina. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| details |
Late Llandoverian |
|
Canada(Gaspe Area) |
Achab,A. Palynostratigraphic study of several Layers of Silurian Formations of the Lac Matapedia Cyncline |
1975 |
| details |
Silurian |
|
Canada(Gaspe Area) |
Achab,A. Palynostratigraphic study of several Layers of Silurian Formations of the Lac Matapedia Cyncline |
1975 |
| details |
Late Llandoverian |
|
Canada(Quebec) |
Achab,A. Acritarchs from the Awantjish Formation (Upper Llandoverian) in the Val Brillant Borehold, Matapedia Valley, Quebec. |
1976 |
| details |
Late Scythian |
|
Libya |
Adloff,M.C. et al. Trias of Tripolitania (Libya) new biostratigraphic and palynological data. Part two. |
1986 |
| details |
Late Rhaetian |
Early Sinemurian |
Celtic Sea |
Ainsworth,N.R. et al. Jurassic and Upper Triassic biostratigraphy of the North Celtic Sea and Fastnet Basins. (In:Northwest European Micropalaeontology and Palynology.D.J. Batten and M.C. Keen, editors) |
1989 |
| details |
Vendian |
Early Cambrian |
USSR(Irkutskaya Oblast) |
Akulcheva,Z.A. et al. Motsk deposits and their Analogues in the Irkutsk Amphitheatre. (In: Transitional deposits of the Pre-Cambrian and Cambrian of the Siberian Platform. (Biostratigraphy, paleontology, conditions of Formation.) |
1981 |
| details |
Barremian |
Aptian |
Canada(Eastern Offshore) |
Allen,R.P. Palynology of the Lower Cretaceous Naskapi Shale, Scotian Shelf. |
1977 |
| details |
Late Riphean |
|
Mauritania |
Amard,B. Late Proterozoic microfossils (Acritarchs) from the Shales of the Atar Formation (Mauritania) |
1986 |
| details |
Late Proterozoic |
|
Benin |
Amard,B. Ultrastructure of Chuaria (Walcott) Vidal and Ford (Acritarcha) from the Late Proterozoic Pendjari Formation, Benin and Burkina-Faso, West Africa |
1992 |
| details |
Late Proterozoic |
|
Burkina-Faso |
Amard,B. Ultrastructure of Chuaria (Walcott) Vidal and Ford (Acritarcha) from the Late Proterozoic Pendjari Formation, Benin and Burkina-Faso, West Africa |
1992 |
| details |
Early Tertiary |
|
Pacific(S.China Sea) |
Anonymous The Tertiary system of the Continental Shelf in the northern area of the South China Sea |
1981 |
| details |
Late Vendian |
Early Cambrian |
Poland |
Aren,B. et al. Organic remains at the Vendian-Cambrian boundary in the Platform sediments in Poland |
1974 |
| details |
Late Vendian |
Middle Cambrian |
USSR(Baltic) |
Aren,B. et al. The Baltic Syncline. (In: Stratigraphy of Upper Precambrian and Cambrian deposits on the western part of the East European Platform. B.M.Keller and A.Y.Rozanov, editors) |
1979 |